What You Need to Know
Thermal treatments such as sous‑vide at 60 °C release free glutamate, while high‑pressure processing preserves amino acids and boosts inosinate. Fermentation with Lactobacillus plantarum further increases glutamate and inosinate concentrations, and Maillard reactions during heating generate aroma compounds that synergize with umami receptors.
Steps
- 1.
Dashi replacement (Japanese vegan cuisine): Creates kelp-free umami base using shiitake/maitake
- 2.
Umami butter (Modern French technique): Enhances compound butter with porcini powder
- 3.
Mushroom garum (Nordic fermentation): Concentrates glutamate via enzymatic breakdown
The Science
Primary Reaction
Release and preservation of free glutamic acid and inosine monophosphate through controlled heat, pressure, and fermentation